Baušys, Romualdas. “Error Estimator for Acoustic problems/Akustikos uždavinių Paklaidų įvertinimas”. Journal of Civil Engineering and Management 5, no. 1 (February 28, 1999): 22-27. Accessed December 28, 2024. https://ijspm.vgtu.lt/index.php/JCEM/article/view/9327.